Universal Dynamic8 USB Wall Travel Home Battery Charger AC Power Adapter Plug Compatible with AT&T Samsung Galaxy S 2 Skyrocket (S II / S2 / S-2) Cell Phones. Compact, lightweight and portable this charger adapter is a must have product for frequent travelers. Stay charged when you're at home or away from your computer using the convenient Power Bug to charge your device from any wall outlet.The dynamic8 USB charger is a USB power adapter you can use to charge your device at home, on the road, or whenever your device is not connected to a computer. Simply plug the adapter into a wall outlet and connect to your phone to charge. This charger is easy to operate and even easier to store. Standard female USB port, Output: 5V, input: 220V, 1A. with auto switching.